Hey there, sorry I missed your comment. I blame the (lack of) Steemit notifications. Maybe there's an option I can toggle somewhere. ..

Anyway, I just made a shared google sheet so you can dive in and see all the formulas and the cost breakdown for each machine: https://drive.google.com/open?id=1FI9cVr-djpslVIj0fFKHQDfdYmEfaBssvr6hviFqTWo